During the Great Fire of London in 1666, St. Paul’s Cathedral was totally destroyed. Basically the same thing happened, burning wood ceiling frame, and melting lead destroyed much below. When the fire had first started, many people had moved their property, books, etc., to the vault in the Cathedral’s vault for safe-keeping.The fire was so intense that it burned through the vault, and everything within was lost. Many burials in the vaults below were also destroyed due to the fire.
Bet the 1666 townsfolk started a water bucket brigade a lot faster than the fire department did for ND.